.main_nav{
	color:#666;
	margin:12px 0;
}
.main_nav a:link,.main_nav a:visited{
	color:#666;
	text-decoration:none;
}
.main_nav a:hover,.main_nav a:active{
	color:#666;
	text-decoration:underline;
}
.case_intru{
	width:1150px;
	border:1px solid #ccc;
	height:213px;
	background:#fefefe;
}
.case_intru_left{
	float:left;
	margin-left:16px;
	padding-top:25px;
}
.case_intru_left img{
    width:200px;
    height:150px;
}
.case_intru_right{
	float:right;
	margin-right:20px;
	padding-top:35px;
	font-size:14px;
}
.case_intru_right ul li{
	position:relative;
	width:730px;
	padding:8px 0 8px 72px;
	background:url(images/case_intru_right_line.png) repeat-x left bottom;
}
.case_intru_banner img{
    width:1017px;
    height:887px;
}
.case_intru_right ul li div{
	width:70px;
	padding-left:20px;
	text-align:right;
	position:absolute;
	top:8px;
	left:-19px;
}
.case_intru_banner{
	width:1150px;
	border:1px solid #ccc;
	overflow:hidden;
	background:#fff;
}
.case_intru_banner div{
    text-align: center;
}

ul.cases_banner_ul1{
	margin:39px 65px 23px 0;
	overflow:hidden;
}
.case_intru_banner ul li a{
	display:block;
	width:76px;
	height:28px;
}
.cases_banner_ul1 li{
	float:right;
}
li.cases_banner_li1 a{
	background:url(images/case_01_next.png) no-repeat;
	text-indent:-9999px;
}
li.cases_banner_li2 a{
	background:url(images/case_01_last.png) no-repeat;
	margin-right:10px;
	text-indent:-9999px;
}
.case_intru_banner img{
	margin:0 65px;
}
ul.cases_banner_ul2 {
	margin:20px  65px;
	overflow:hidden;
}
li.cases_banner_li3{
	float:left;
}
li.cases_banner_li3 a{
	background:url(images/case_01_last.png) no-repeat;
	text-indent:-9999px;
}
li.cases_banner_li4{
	float:right;
}
li.cases_banner_li4 a{
	background:url(images/case_01_next.png) no-repeat;
	text-indent:-9999px;
}

